Chris Aldrich reviewed The great brain by John Dennis Fitzgerald (A Yearling book)
The exploits of the Great Brain of Adenville, Utah are described by his younger brother, …
Review of 'The great brain' on 'Goodreads'
4 stars
Haven't read this since childhood. It holds up fairly well. I remember really loving this series as a child. The first in the series is good, though not as good as I had remembered - I'm guessing it was books later in the series which made me love them so much.